Carpet-renovator.



PATENTBD SEPT. 26, 1905.

J. S. THURMAN.

CARPET RENOVATOR.

APPLICATION FILED 00T. 23, 1902.

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PATENT OFFTOE.

JOHN S. THURMAN, OF ST. LOUIS, MISSOURI.

CARPET-RENOVATOR.

Specicaton of Letters Patent.

Application filed October 23, 1902. Serial No. 128,382.

To ,ZZ whom, it may concern.'

Be it known that I, JOHN S. THURMAN, a

citizen of the United States, residing' at St. Louis, Missouri, haveinvented a certain new and useful Improvement in Carpet-Renovators, ofwhich the following is a full, clear, and exact description, suoli aswill enable others skilled in the art to which it appertains to make anduse the same, reference being' had to the accompanying drawings, formingpart of this specification, in which- Figure l is a side elevationalview of my improved renovator. Fig. 2 is a rear elevational view of thesame. Fig. 3 is a vertical longitudinal sectional view of the same. Fig.4 is in part a Vertical transverse sectional view on the line 4L L ofFig. 3 and in part a front elevational view of the same, and Fig. is ahorizontal longitudinal sectional view of the same.

This invention relates to a new and useful improvement incarpet-renovators, the object being to construct a device of thecharacter described which is capable of effectively renovating acarpet-that is, dislodging the dust and dirt therefrom when being movedin two directions-to wit, forward and backward.

Heretofore renovating-machines known as the double machine have beenprovided with a simple blast with passages for the dustladen air on bothsides thereof, and it is claimed for these machines the virtue ofperforming eective work when being moved forward and backward. Stillother machines have been provided with a circular blast which enablesthe machines to be moved in any direction. In all of these machines theblastnozzle has been fixed with relation to the casing, and it isobvious that this fixed angle of the blast is most effective when themachine is being moved in the proper direction to take advantage of theangle of the blast.

It is the prime object of my present-invention to provide means in acarpet-renovator whereby when the machine is being moved in onedirection the angle of the blast will be such as to most advantageouslyrenovate the carpet and when the machine is being moved in the oppositedirection the angle of the blast will be changed so as to mostadvantageously renovate the carpet under vthe changed conditions. Thischanging of the angle of the blast I prefer to make dependent upon thedirection in which the renovator is being moved, providing means wherebyit is automatically accomplished; butit is obvious that the operator canchange the angle of the blast without moving the casing over the carpetby simply manipulating the handle.

In the drawings, 1 indicates the casing,which is preferably open at itstop and which discharges the dust-laden air into a dust-arrest.- ing bag2, as has heretofore been done.

3 indicates the side walls, and 4 the bottom wall, of a dust-collectingchamber, which, with the casing l, provides two passages for thedust-laden air on each side of the machine. The chamber in the bottom ofthe machine, which communicates with these passages, has the adjustableblast-nozzle located therein, as shown. At the upperends of the passagesfor the dust-laden air are located the valves 5, which are lifted by thedust-laden air and direct said dust-laden air downwardly and inwardly,so as to enable the depositing of the heavier particles of dust in thechamber formed by the walls 3 and 4f. To protect these valves from theaccumulation of dust on their upper faces, which would tend to interferewith their proper operation, I provide shelves or extensions 6thereover, as shown.

7 indicates the blast-nozzle, which extends transversely the machine,which blast-nozzle is provided with a removable side wall 8, secured inposition by suitable screws. This removable wall is preferably finishedflush on its inner face, so as to fit snugly against the body portion,and in order to provide the slit or opening through which the blast ofair issues I provide thin sheets of paper or other material 9 at theside edges and at the rabbeted joint, as has heretofore been describedin my former patents. The ends of the nozzle 7 have secured theretosuitable head castings 9, which project through openings in the sidewalls of the casing. These openings, as shown in Figs. 1 and 4, areelongated, the longest diameter being less than a right angle to theaxes of the operating-handle.

10 indicates extensions on the head-castings in the form of rock-arms,to which the yoke members Il of the handle are pivoted. These yokemembers extend forwardly from the branches of the handle, which branchesare preferably made hollow to provide conduits for the compressed air,which conduits are connected by iiexible pipes l2 to the chambers in thehead-castings 9.

In operation it will be seen that when the renovator is pushed forwardthe handle, being connected below the pivotal point of the noz-Patented. Sept. 26, 1905.

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zle, will swing the nozzle on its pivot, the l liexible pipe permittingthis, and throw the nozzle forward, so that it comes in contact with thenap of the carpet, bending the same forward to enable the issuing blastot' air to more readily dislodge the particles of dirt and dust in thecarpet, 'forcingI them into the forward passage and up into the chamberin the casing. The lower ends ol the slots in the side walls of thecasing act practically as stops; but as the lower end olI the nozzle isilush with the lower face of the casing, or it may project slightlybeneath the lower face oi the casing, it' desired, the end oi' thenozzle may be pressed well down into the nap 0f the carpet to ciIecvtually perform its work. Then the direction ot' movement of therenovator is changed and it is pulled backward, the pressure on thehandle will cause the trunnions of the blast-nozzle to ride up in theirrespective slots, so as to permit the angle of said nozzle to bechanged. The long axis of the slot being slightly less than a rightangle to the handle will cause the pull on the handle in a horizontaldirection to force the end of the nozzle well down into the nap of thecarpet, and the dust-laden air will now be forced up into the passage atthe back of the machine.

In order that the angle of the blast-nozzle may be adjusted when themachine is being moved in either direction, I provide set-screws 13 inthe bottom wall et, which extend thercthrough and cooperate with theblast-nozzle in its diderent positions. rIhese set-screws may beadjusted from the interior, and when the proper angle of the nozzle hasbeen determined fordiiferent kinds ot' work the machine may be operatedwithout further adjustment.

So far as I am aware I am the iirst to pivotally connect a nozzle to thehandle of a carpet-renovator, whereby when the renovator is in operationpressure exerted on said handle either in a direction toward the casingor from the casing to move the renovator will change the angle of thenozzle, so as to project the blast ot' air issuing from the nozzle in aforward direction with respect to the movement of the renovator-casing.

I am aware that many minor changes in the construction, arrangement, andcombination of the several parts of my device can be made andsubstituted for those herein shown and described without in the leastdeparting vfrom the nature and principle of my invention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. In a carpet-renovator, the combination with an open-bottomed casingmovable over the article to be renovated, oil a nozzle mounted in saidcasing to discharge through the opening therein, and a handle Jforpropelling said casing and pivotally connected t0 said nozzle.

2. In a carpet-renovator, the combination with a casing having elongatedopenings, of a nozzle trunnioned in said openings, and a handlepivotally connected to said nozzle;` substantially as described.

3. In a carpet-renovator, the combination with a casing, ot' a nozzleInovably mounted therein, and means 'for changing' the position ol saidnozzle when the direction of movement ot' thc renovator is changed;substantially as described.

4. Ina carpet-renovator, the combination with a casing, ot' a nozzlemovably mounted therein, a handle pivotally connected to said nozzle,and a iiexible supply-pipe for furnishing compressed air to said nozzle;substantially as described.

5. In a carpet-renovator, the combination with a casing having twooppositely-arranged passages, one on each side, said passages converginginto an enlarged chamber at the bot tom of the casing, of valves at thedischarge ends of said passages, and a nozzle centrally pivoted in saidenlarged chamber for discharging air downward into and through thecarpet being` renovated, and in the direction ot' one or the other ofsaid passages; substantially as described.

6. In a carpet-renovator, the combination with a casing having elongatedopenings in its side walls, a nozzle trunnioned in said openings, meansfor adjusting the opening' in said nozzle, head-castings provid ed withrock-arms arranged outside the casing, and an operatinghandle pivotallyconnected to said rock-arms; substantially as described.

7. In a carpet-renovator, the combination with a casing having elongatedopenings, ot a nozzle trunnioned in said openings, means for adjustingthe angular relation ot' said nozzle to the casing in its differentpositions, and a handle connected to said nozzle for changing itsposition; substantially as described.

8. In a carpet-renovator, the combination with an open-bottomed casingmovable over the article to be renovated, of a swinging nozzle fordischarging through the opening in said casing, means for adjustablylimiting the movement of said nozzle in either direction, and means formoving said nozzle in different directions; substantially as described.

9. In a carpet-renovator, the combination with an open-bottomed casing,movable over the article to be renovated, of a nozzle movably mountedtherein to discharge through the opening thereof, a rock-arm extensionlixed to said nozzle, and a handle for propelling said renovator, andpivotally connected to said extension to reverse the direction of saidnozzle.

10. In a carpet-renovator, the combination with a casing, of a nozzlemovably mounted therein, headrcastings at the endsoi:l the nozzle, saidhead-castings having rck-arm cxtensions l0, a forked handle pivotallyconnected to said rock-arm extensions said handle being provided with asupplypassage for IOO IIO

compressed air, and flexible connections between said supply-passage andthe hollow head-castings, which latter communicate with thenozzle-opening; substantially as described.

11. In a pneumatic carpet-cleaner, an openbottomed case, anair-distributer adjustably connected with the inside faces of the endsof the case, to operate in the manner set forth for the purposes stated.

12. In a pneumatic carpet-cleaner, an openbottomed case provided with aninterior chamber and a passage leading from the open bottom to saidchamber, and an air-nozzle adjustably connected with the inside faces ofthe case and in line with the mouth of the passage; substantially asdescribed.

13. In a carpet-renovator, the combination with a casing, of a nozzlemovably mounted therein, a rock-arm extension fixed to said nozzle, ahandle provided with a blast-passage, said handle being' pivotallyconnected with said extension, and a flexible blast-conducting pipeconnected, respectively, with said nozzle and with said handle;substantially as described.

14. In a carpet-renovator, the combination with a casing, of a nozzlepivotally mounted therein, and a handle movable relatively to saidnozzle and provided with an air-supply passage, and connections betweensaid handle and nozzle, said connections being provided with anair-passage connecting the passage in said handle with the nozzle.

15. In a renovator, the combinationwith a casing, of a nozzle in saidcasing, means for movably supporting said nozzle, ahandle movable withreference to said casing for propeiling said renovator, and connectionsbetween said nozzle and said handle to change the position of saidnozzle relative to said casing to reverse the direction of discharge ofair into the article to be renovated when the direction of movement ofthe renovator is changed.

16. The combination with the casing of a renovator provided with aplurality of passages through which the dust-laden air is forced, ofmeans for supplying air to said passages, and means for shifting thesupply of air from one passage to another.

17. The combination with the casing of a renovator provided with aplurality of passages through which the dust-laden air is forced, ofmeans for supplying air to said passages, and a handle for propellingsaid renovator and shifting the supply of air from one passage toanother.

18. The combination with the casing of a renovator provided with aplurality of passages through which the dust-laden air is forced, saidcasing being also provided with a chamber connected with said passages,of a nozzle movably mounted in said chamber.

In testimony whereof I hereunto aflx my signature, in the presence oftwo witnesses, this 21st day of October', 1902.

JOHN S. THURMAN.

Witnesses:

GEORGE BAKEWELL, G. A. PENNINGTON.

